linux-kernel - [PATCH 05/10] mm: check kmalloc() return value

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Date:	Wed, 28 Jul 2010 20:40:03 +0400
From:	Kulikov Vasiliy <segooon@...il.com>
To:	kernel-janitors@...r.kernel.org
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Tejun Heo <tj@...nel.org>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Nick Piggin <npiggin@...e.de>,
	Jan Beulich <jbeulich@...ell.com>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: [PATCH 05/10] mm: check kmalloc() return value

kmalloc() may fail, if so return -ENOMEM.

Signed-off-by: Kulikov Vasiliy <segooon@...il.com>
---
 mm/vmalloc.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index b7e314b..f63684a 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -2437,8 +2437,11 @@ static int vmalloc_open(struct inode *inode, struct file *file)
 	unsigned int *ptr = NULL;
 	int ret;
 
-	if (NUMA_BUILD)
+	if (NUMA_BUILD) {
 		ptr = kmalloc(nr_node_ids * sizeof(unsigned int), GFP_KERNEL);
+		if (ptr == NULL)
+			return -ENOMEM;
+	}
 	ret = seq_open(file, &vmalloc_op);
 	if (!ret) {
 		struct seq_file *m = file->private_data;
-- 
1.7.0.4

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